AP7347EQ-28FGECW-13A

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AP7347EQ-28FGECW-13A is a 500mA low-dropout regulator with a fixed 2.8V output, manufactured by Diodes Incorporated. It operates within an input voltage range of 1.7V to 5.5V and delivers ±1% output accuracy across the -40°C to +125°C temperature range. The device features 75dB ripple rejection at 1kHz and 60µVrms output noise from 10Hz to 100kHz. Quiescent current is 75µA. It includes power-good indication, active output discharge, and thermal/short-circuit protection in a V-DFN3030-8/SWP package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Automotive-grade qualification (AEC-Q100) for high-reliability applications
• Integrated power-good indicator for supply monitoring and sequencing
• Active output discharge ensures known system startup states when disabled
• Foldback short-circuit current limiting protects against overcurrent conditions

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Infotainment power supplies
• Automotive RF supplies
• ADAS load point regulators
• Automotive wireless communication systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific ordering suffix FGECW-13A matches the required V-DFN3030-8/SWP package and tape-and-reel quantity. Confirm that the fixed 2.8V output variant aligns with the target circuit design requirements before finalizing procurement orders.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for designs requiring automotive compliance and low-noise performance. Ensure input voltages remain between 1.7V and 5.5V. Verify that the 500mA maximum output current meets the peak load demands of the application while maintaining stability with appropriate ceramic capacitors.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AP7347EQ series of high-PSRR, low-noise LDOs designed for noise-sensitive automotive equipment. It utilizes a CMOS process and offers both fixed and adjustable output versions. The series supports various packages including U-DFN2020-6 and V-DFN3030-8, catering to different power density and thermal dissipation needs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

AP7347DQ-28FDZW-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

How does the Power-Good pin function?

The PG pin is an open-drain output that goes into a high-impedance state when VOUT exceeds the threshold and pulls low when VOUT drops below the threshold or the device is disabled.

What happens during a short-circuit condition?

Short-circuit protection triggers and clamps the output current to approximately 180mA via foldback current limiting to prevent overheating and damage.